The phrase "food sources" refers to the places or things from which we get our food. It could be plants, animals, or other sources that provide our necessary nutrition. Full definition
Use the following lists of food sources of magnesium and magnesium - rich gluten - free recipes to make sure you are getting enough magnesium in your gluten - free diet! (thespruce.com)
The key is to use shakes in a pinch and rely on whole food sources for the rest of your meals. (dailyburn.com)
Not that I'm telling anybody they should stop taking them, just be sure to get what you need from foods sources as at least you know it's absorbed. (zestforever.com)